I don't think people will pay for content. And the ones who will pay for content may be overwhelmingly attractive targets to advertisers in general? So you will never get any support from platforms for your "subscription ad-space buying service."

But Youtube has something like 20 million premium subscribers - I'm one myself with a family plan. But that is against an estimated 2.6 billion active users. Like, 1%? Round up and call it 2%.

I wonder how many of those 2% of users are the most attractive and desired targets of advertisers?

OTOH, if you said to me you had a service that would bid like 1% more for the adspace on any site or service I consume and that $X00 per year would remove all ads from those sites or service I use . . . I'd buy that.

Putting on my blackhat for a minute. I'm a creator with some small percentage of consumers "opting out" via this type of tool - how can I buy ads on my site/service at an inflated price to optimize my income . . . if I know 2% of my users are willing to pay X+1% shouldn't I try to drive up X? Arbitrage?